RIVERSIDE COUNTY, CA - A preliminary 2.3 magnitude quake occurred near Winchester on Thursday night, according to the U.S.

CHURCHILL COUNTY, NV - A preliminary 2.6 magnitude quake occurred close to Silver Springs on Thursday evening, according to ...

The area is "prone to earthquake swarms," officials say.

The video starts with sunken towns created by dams, reservoirs, earthquakes, tsunamis, and rising water, then shifts to ...

A swarm of earthquakes rattled Southern California's Imperial County on Saturday, with the largest reported temblor ...

A cluster of earthquakes have struck near the U.S.-Mexico border, including ones with a 4.5 and 4.7 magnitude, according to ...

The seismic activity has ranged from very low magnitude up to 4.7 magnitude in strength, according to the USGS data.

Southern California and southwest Arizona are on earthquake alert after a swarm shook Imperial County.

A swarm of more than 350 earthquakes reaching up to magnitude 4.7 rattled Brawley in Southern California near the Salton Sea, ...

The earthquakes continued for hours until a heavy 4.5-magnitude quake rattled the Southern California city from a depth of ...